Microsoft Technology Licensing, LLC

Steven Michael Beeman

Andrew David Wilson

John Clavin

Russell E Glaser

Peter Glenn Sarrett

Scott Henson

Robert Sheldon Walker

An electronic game system and a method of its operation are provided for virtual space mapping of a variable activity region in physical space. A calibration input may be received from a positioning device of a game controller that indicates waypoints that define an activity region in physical space. A scale factor may be identified between the activity region and an interactive game region in virtual space based on the calibration input. Positioning information may be received from the positioning device that indicates a position of the positioning device within the activity region. The position of the positioning device within the activity region may be mapped to a corresponding virtual position within the interactive game region based on the scale factor.

Virtual space mapping of a variable activity region

Orientation in an external reference is determined. An external-frame acceleration for a device is determined, the external-frame acceleration being in an external reference frame relative to the device. An internal-frame acceleration for the device is determined, the internal-frame acceleration being in an internal reference frame relative to the device. An orientation of the device is determined based on a comparison between a direction of the external-frame acceleration and a direction of the internal-frame acceleration.

Determining orientation in an external reference frame

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Kirkland, WA, United States of America

Steven Michael Beeman